hg: jdk9/dev/jdk: 6996366: convert MacAlg to an enum

[xuelei.fan at oracle.com]

Changeset: dff305b1ae9b
Author:    jnimeh
Date:      2015-03-14 09:38 -0700
URL:       http://hg.openjdk.java.net/jdk9/dev/jdk/rev/dff305b1ae9b

6996366: convert MacAlg to an enum
Reviewed-by: xuelei

! src/java.base/share/classes/sun/security/ssl/CipherBox.java
! src/java.base/share/classes/sun/security/ssl/CipherSuite.java
! src/java.base/share/classes/sun/security/ssl/MAC.java
! src/java.base/share/classes/sun/security/ssl/SSLAlgorithmConstraints.java